Green energy-saving building ventilation structure

The utility model relates to a green energy-saving building ventilation structure which comprises a mounting plate, the top of the mounting plate is fixedly connected with a filter box, the interior of the filter box is fixedly connected with a filter screen, and a ventilation assembly is arranged in the filter box. According to the green energy-saving building ventilation structure, after external space enters the filter box, dust or particulate matter can be blocked through a filter screen, when the filter screen needs to be cleaned, a motor is started to drive a threaded rod to rotate, and limiting is conducted through sliding connection of a limiting rod and a moving rod; the movable rod drives the cleaning brush to clean the filter screen, so that the filter screen is prevented from being blocked, hung dust falls into the dust collecting box to be collected, cleaning is convenient, filtered air flows into the air supply pipe from the air suction pipe by starting the air suction pump, and when hot air is